Sets the ecmaVersion of all Acorn parsing to 5, as the default language in the latest Acorn versions has been bumped to ES6.
Sets the ecmaVersion of all Acorn parsing to 5, as the default language in the latest Acorn versions has been bumped to ES6.

arcatdmz/JS-Interpreter,NeilFraser/JS-Interpreter,NeilFraser/JS-Interpreter,NeilFraser/JS-Interpreter,arcatdmz/JS-Interpreter,arcatdmz/JS-Interpreter